package com.atguigu.springcloud.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.util.Date;

/**
 * @author xiaolong
 * @version 1.0
 * @description: GateWay中的Filter过滤器
 * @date 2021/9/20 21:02
 */
@Component
@Slf4j
public class MyLogGateWayFilter implements GlobalFilter, Ordered {


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {

//        log.info("********come in MyLogGateWayFilter: " + new Date());
//        //必须在请求参数传一个uname 值；
//        String uname = exchange.getRequest().getQueryParams().getFirst("uname");
//        if (uname == null) {
//            log.info("*********用户名为null，非法用户，");
//            exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE);
//            return exchange.getResponse().setComplete();
//        }
//
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return -1;
    }
}
